My second pair of Spyridons, & 7th 5-fingers. Spyridon are most comfortable for my feet, but comfort is unique to your foot shape and toe lengths. Can run 6-8 miles comfortably on trails or pavement. They were great for a 15-mile rocky mountain trail hike. I wear these, or my old ones, nearly every day both for running and just as my regular shoes. The tread on my first pair wore out faster than on any other 5-fingers model I have. Had inflamation of metatarsal nerves and serious chronic lower back and knee pain until I started wearing vibram 5-fingers about 4 years ago. Have had no metatarsal, back or knee problems since.

Plan on using these on all mud run competitions (tuff mudder, Tac force..etc). I Use these Vibrams for everything. Love em. I recommend a transition shoe before jumping all in with the shoes. I have brooks pure cadence shoes as a transition shoe. Eventually I want to wear them on all runs. Great shoe.

This is my 3rd pair of 5 Finger shoes. I have used them more as a training tool than full-time running shoes. I will run 1-2 runs a week in them just to keep my running form and gait in check. The Spyridon is a true minimalists trail shoe. The trails I run are not rocky and mostly flat. But there are many tree roots and downed trees to content with. So, I like the ability to bounce and spring along the trail. These offer just enough protection without needing a heavy trail shoe. The grip is good and the upper does repel dirt and mud. I knew these were not waterproof when purchased, and sometimes playing in the mud can be fun. If you like 5 Fingers they are a good addition to their lineup.

Make sure you know your size before you order them. I wear a 10.5 M consistently between brands, however, I wear a 42 in the Vibram Spyridon LS. I dont regret the purchase at all. I live in Idaho and have used them non stop. I even took them on a backpacking trip exploring high mountain lakes and they felt amazing the whole time. I hiked a 20 mile loop over four days with a buddy. I do not recommend wearing them with pack weights of 50lbs + which is what I normally carry but outside of that you cant go wrong. I lasted about five miles with 50 lbs on my back wearing the Spyridon LS before I put my hikings shoes back on. I just needed more ancle support is all.

I bought these five fingers for tough mudder new England April 2012, they were awesome. No problems with the mud and up hill battles. this is the second pair of vibrams I have bought from rock creek and I will buy another pair. Customer service was awesome hand no trouble sending my shoes back for a different size. I was with s group of six, only one wearing vibrams and I had the least trouble with shoes.